82771780

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{89}}^1$

素因数の和:198

約数の個数: 144

約数和(自身を含む): 223216560

約数和(自身を除く): 140444780

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 65, 70, 73, 89, 91, 98, 130, 140, 146, 178, 182, 196, 245, 260, 292, 356, 364, 365, 445, 455, 490, 511, 623, 637, 730, 890, 910, 949, 980, 1022, 1157, 1246, 1274, 1460, 1780, 1820, 1898, 2044, 2314, 2492, 2548, 2555, 3115, 3185, 3577, 3796, 4361, 4628, 4745, 5110, 5785, 6230, 6370, 6497, 6643, 7154, 8099, 8722, 9490, 10220, 11570, 12460, 12740, 12994, 13286, 14308, 16198, 17444, 17885, 18980, 21805, 23140, 25988, 26572, 32396, 32485, 33215, 35770, 40495, 43610, 45479, 46501, 56693, 64970, 66430, 71540, 80990, 84461, 87220, 90958, 93002, 113386, 129940, 132860, 161980, 168922, 181916, 186004, 226772, 227395, 232505, 283465, 318353, 337844, 422305, 454790, 465010, 566930, 591227, 636706, 844610, 909580, 930020, 1133860, 1182454, 1273412, 1591765, 1689220, 2364908, 2956135, 3183530, 4138589, 5912270, 6367060, 8277178, 11824540, 16554356, 20692945, 41385890, 82771780]

約数ペア:

[(1, 82771780), (2, 41385890), (4, 20692945), (5, 16554356), (7, 11824540), (10, 8277178), (13, 6367060), (14, 5912270), (20, 4138589), (26, 3183530), (28, 2956135), (35, 2364908), (49, 1689220), (52, 1591765), (65, 1273412), (70, 1182454), (73, 1133860), (89, 930020), (91, 909580), (98, 844610), (130, 636706), (140, 591227), (146, 566930), (178, 465010), (182, 454790), (196, 422305), (245, 337844), (260, 318353), (292, 283465), (356, 232505), (364, 227395), (365, 226772), (445, 186004), (455, 181916), (490, 168922), (511, 161980), (623, 132860), (637, 129940), (730, 113386), (890, 93002), (910, 90958), (949, 87220), (980, 84461), (1022, 80990), (1157, 71540), (1246, 66430), (1274, 64970), (1460, 56693), (1780, 46501), (1820, 45479), (1898, 43610), (2044, 40495), (2314, 35770), (2492, 33215), (2548, 32485), (2555, 32396), (3115, 26572), (3185, 25988), (3577, 23140), (3796, 21805), (4361, 18980), (4628, 17885), (4745, 17444), (5110, 16198), (5785, 14308), (6230, 13286), (6370, 12994), (6497, 12740), (6643, 12460), (7154, 11570), (8099, 10220), (8722, 9490)]